is a stratovolcano of the Northern Yatsugatake Volcanic Group in Koumi, Nagano Prefecture, Japan. This mountain is part of the Yatsugatake-Chà «shin Kà Âgen Quasi-National Park.
There are several routes to reach to the top of Mount Nyà «. One is from Shirokoma Pond, it takes one and half hours. Another major route is from Mount Naka.